Chapter 7 Multiple Choice Questions

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. How many neurones make up a human brain?

100,000,000 correct incorrect

2 correct incorrect

86,000,000,000 correct incorrect

9,000,000,000,000 correct incorrect

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. What vitamin deficiency, common in alcoholics, leads to Wernicke–Korsakoff syndrome?

Vitamin A correct incorrect

Vitamin B₁ correct incorrect

Vitamin C correct incorrect

Vitamin E correct incorrect

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. How much of the blood flowing from the heart goes to the brain?

15% correct incorrect

20% correct incorrect

5% correct incorrect

7% correct incorrect

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. Which of the following is not an anatomical area of the brain?

Cerebellum correct incorrect

Cerebrum correct incorrect

Cochlear correct incorrect

Brain stem correct incorrect

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. Cerebrospinal fluid (CSF) has several important functions. Which of the following is not a function of CSF?

Providing a stable ionic environment correct incorrect

Reducing the effective weight of the brain correct incorrect

Reducing transfer of oxygen correct incorrect

Providing a shock-absorbing effect correct incorrect

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. Which of the following is the correct definition of a primary brain injury?

The secondary insult to neurones caused by release of inflammatory mediators correct incorrect

The initial, reversible insult to the neurones within the brain correct incorrect

The initial injury to neurones within the peripheral nervous system correct incorrect

The initial, irreversible insult to the neurones within the brain correct incorrect

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. The sympathetic nervous system is responsible for which of the following responses?

Constriction of the pupil correct incorrect

Increasing gut transfer correct incorrect

Dilating bronchioles correct incorrect

Increasing salivation correct incorrect

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. What is the name of the principle that, because the skull is a fixed vault, pressure within the skull increases as the volume of blood/CSF/tissue increases?

Monro-Kellie doctrine correct incorrect

Poiseuille's law correct incorrect

Fick's principle correct incorrect

Bohr's equation correct incorrect

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. Which of the following is not a form of intracranial injury?

Subarachnoid bleed correct incorrect

Contrecoup correct incorrect

Haemoperitoneum correct incorrect

Extradural bleed correct incorrect

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. Which of the following is considered part of the central nervous system?

Sympathetic nerves correct incorrect

Spinal cord correct incorrect

Motor nerves correct incorrect

Dura mater correct incorrect